Air testing via GC-MS
Posted: Mon Aug 10, 2015 8:09 pm
I work in a lab trying to start up TO-15/14a EPA method testing. Our lab has a policy of "Whichever is more stringent" is the rule to go by, TO-14a requires all response factors under 30%, TO-15 requires the same but allows for two exceptions, so we follow the more stringent. We have one problem analyte, 1,2,4-Trichlorobenzene that likes to have a Response Factor over 30%, it has to be under 30%. We have tried the BFBAtune, Atune, and manual tuning. The source is clean. Any thoughts on what might help to get the Response factor down? We have 1,2-Dichlorobenzene, 1,3-Dichlorobenzene, and 1,4-Dichlorobenzene which are similar to 1,2,4-Trichlorobenzene. The 3 Dichlorobenzenes are under 8% RF. Any and all help is appreciated!
We are working with the Entech Cryo Autosampler, the Agilent 7890B GC, and the 5977A agilent MSD.
We are working with the Entech Cryo Autosampler, the Agilent 7890B GC, and the 5977A agilent MSD.